DPSK via RADIUS

Hello,I am currently working on a DPSK + external RADIUS implementation. If I understand this correctly, the RADIUS must already be familiar to the PSK's by client MAC and then report it back by Ruckus VSA? So it is not the task of the RADIUS to grant access by the PSK?

If I compare this with the internal Ruckus DPSK variant, can I not say that the same result can be achieved?